Use Your Old Phone as a Security Camera
- May 14
- 3 min read
A Smart, Sustainable Solution
In today's fast-paced world, technology evolves rapidly, leaving us with outdated devices that often end up collecting dust in drawers. But what if you could breathe new life into your old smartphone by transforming it into a functional security camera? This not only provides a cost-effective way to enhance your home security but also contributes to environmental sustainability by reducing electronic waste.

Why Repurpose Your Old Smartphone?
Old smartphones are equipped with cameras, microphones, and internet connectivity—essential components of a security camera. By repurposing these devices, you can:
Save Money: Avoid the expense of purchasing new security equipment.
Reduce E-Waste: Extend the life of your device and minimize environmental impact.
Enhance Security: Monitor your home, pets, or loved ones remotely.

Choosing the Right App
Several applications can help you convert your old smartphone into a security camera. Here are some popular options:
AlfredCamera: A user-friendly app compatible with both Android and iOS. It offers live streaming, motion detection, two-way audio, and cloud storage. The free version provides standard features, while the premium version offers HD video, zoom capabilities, and ad removal. (AirDroid)
Manything: Available for iOS and Android, Manything allows live streaming, motion detection, and cloud recording. It also integrates with IFTTT for smart home automation. (AirDroid)
AtHome Camera: This app supports two-way communication, night vision, and AI-based motion detection. It's suitable for both Android and iOS devices. (Digital Trends)
Haven: An open-source Android app developed by Edward Snowden, Haven uses your phone's sensors to detect motion, sound, and light changes, sending alerts to your primary device. (WIRED)

Setting Up Your Security Camera
Prepare Your Device:
Factory Reset: Erase personal data to ensure privacy.
Update Software: Install the latest OS updates for security and compatibility.
Disable Unnecessary Apps: Free up resources by removing or disabling unused applications.
Install the Chosen App:
Download the app on both your old and current smartphones.
Follow the app's instructions to pair the devices, designating the old phone as the camera and the current phone as the viewer.(UMatechnology, Android Authority)
Position Your Camera:
Location: Place the device in areas you wish to monitor, such as entry points or common areas.
Mounting: Use stands, tripods, or wall mounts to secure the phone.
Power Supply: Keep the device plugged in to ensure continuous operation.(UMatechnology, Digital Trends)
Configure Settings:
Motion Detection: Adjust sensitivity levels to minimize false alerts.
Notifications: Enable alerts to stay informed of any detected activity.
Storage: Choose between local storage or cloud services based on your preferences and the app's offerings.(WIRED)

Considerations and Limitations
While repurposing an old smartphone is advantageous, be mindful of certain limitations:
Battery Life: Older batteries may not hold a charge well; keeping the device plugged in is essential.
Camera Quality: The resolution may not match modern security cameras, affecting image clarity.
Field of View: Smartphone cameras have a limited viewing angle; consider using wide-angle lenses if necessary.
Durability: Smartphones are not weatherproof; indoor use is recommended unless adequately protected.(blog.lcast.app)

Enhancing Your Setup
To optimize your DIY security system:
Use Multiple Devices: Set up additional old smartphones to cover various areas of your home.
Integrate with Smart Home Systems: Some apps offer integration with platforms like IFTTT, allowing automation and enhanced control.
Regular Maintenance: Periodically check the devices for software updates and ensure they are functioning correctly.
Transforming your old smartphone into a security camera is a practical and eco-friendly solution to enhance your home security. With the right app and setup, you can monitor your property, keep an eye on pets, or ensure the safety of loved ones—all without the need for expensive equipment. Embrace this innovative approach to repurposing technology, and contribute to a more sustainable future.
Note: The information provided is based on available resources and may vary depending on device compatibility and app updates.